Learn Polymer, Realm and Sequelize

Polymer is a framework created at Google for building reusable web components.

We use HTML elements every day such as div, a, button, form, and table. All HTML elements provide some sort of API of attributes, properties, methods and events that we use to manipulate them. Generally, web elements are styled in a particular way by default, and also allow us to customize their styling with CSS.

Polymer allows you to build fully custom web elements of your own for more complex components composed of the building blocks you are used to with the standard set of HTML elements.

This course is an introduction to Polymer, and should get you started building your own customizable web elements that you can use on their own, or even with your favorite framework like Angular or React!

The Polymer library provides a set of features for creating custom elements. These features are designed to make it easier and faster to make custom elements that work like standard DOM elements.

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Creating Custom Web Elements with Polymer 2

In this lesson we'll look at creating event listeners in our custom element using the listeners object as well as annotated event listeners.

Create Event Listeners in Polymer Elements

Custom element property changes can be observed by specifying an observer method which will be executed whenever a change occurs and receive both the new value and old value.

Observe Property Changes on a Custom Polymer Element

In this lesson we'll look at the lifecycle callbacks (Created, Ready, Attached, Detached, and attributeChanged) available to us in Polymer and how to use each one.

Use Lifecycle Callbacks On Custom Polymer Elements

Polymer provides us a variety of data-binding configurations.  In this lesson we'll look at configuring Two-way, One-way-down and One-way-up data binding.

Data Bind Two Polymer Elements

We can utilize the "fire" method from within our custom element to execute a custom event.  In this lesson we'll create a custom event and pass useful data along with the event to the consumer of our element.

Execute Custom Events in Polymer

In this lesson we'll use the "dom-repeat" helper method in our custom element to iterate over a collection and use the built in model instantiation to update items in our collection.

Iterate over a Collection with Polymer's dom-repeate

Sequelize is a promise-based ORM for Node.js and io.js. It supports the dialects PostgreSQL, MySQL, MariaDB, SQLite and MSSQL and features solid transaction support, relations, read replication and more.

sequelize

Sequelize attribute getters and setters are a convenient way to encapsulate extra logic for model properties. In this video, we'll cover adding getters and setters to enhance and even virtualize a column.

Sequelize: Getters, Setters and Virtual Columns

In this lesson we'll install Polymer using bower and explore creating our first custom element. We will use the dom-module to create our first Element and add an event listener to watch for the `keyup` event.

Create a Custom Element using Polymer

In this lesson we'll look at how to isolate the style of our custom element, use the ":host" selector, and create css variables in order to theme our element.

Style Custom Elements in Polymer

Polymer allows us to extend a native HTML element's UI or functionality.  In this lesson we'll use a button as our custom element basis and add new UI and functionality to it that can be added to any button in our application.

Extend Native HTML Elements with Polymer

We can declare properties on our custom element which serve as a public api configurable by any user from markup.

Understand Declared Property Basics in Polymer

Realm is a mobile database that runs directly inside phones, tablets or wearables. This project hosts the JavaScript versions of Realm. Currently we only support React Native (both iOS & Android) and Node.js (on MacOS and Linux) but we are considering adding support for Cordova/PhoneGap/Ionic as well.

realm

Realm is an ACID compliant object database. In this lesson, you will learn how to install Realm, define schemas for your data, perform CRUD operations and persist your data to the filesystem.

Use Realm Object Database with Node.js

Models in the Node.js ORM, Sequelize, can be expanded with both class level and instance level functions. This video will show you how to extend your models to add helpers or business logic, and explain the methods execution scope.

Sequelize: Class & Instance Methods

Javascript and database systems tend to be at odds with regard to how tables and columns should be named. Sequlize provides all the tools necessary to satisfy naming conventions in both your Node.js code and in your SQL database.

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